<template>
  <div class='recommend'
       ref='recommend'>
    <scroll ref='scroll'
            class='recommend-content'
            :data='discList'>
      <div>
        <div v-if='recommends.length'
             class='slider-wrappr'>
          <slider>
            <div v-for='(item,index) in recommends'
                 :key='index'>
              <a :href='item.linkUrl'>
                <img class='needsclick'
                     @load='loadImage'
                     :src='item.picUrl' />
              </a>
            </div>
          </slider>
        </div>
        <div class='recommend-list'>
          <h1 class='list-title'>热门歌单推荐</h1>
          <ul>
            <li @click='selectItem(item)'
                v-for='(item,index) in discList'
                class='item'
                :key='index'>
              <div class='icon'>
                <img width='60'
                     height='60'
                     v-lazy="item.imgurl">
              </div>
              <div class='text'>
                <h2 class='name'
                    v-html='item.creator.name'></h2>
                <p class='disc'
                   v-html='item.dissname'></p>
              </div>
            </li>
          </ul>
        </div>
      </div>
      <div class='loading-container'
           v-show='!discList.length'>
        <loading></loading>
      </div>
    </scroll>
    <router-view></router-view>
  </div>
</template>

<script type="text/javascript">
import Loading from 'base/loading/loading'
import Scroll from 'base/scroll/scroll'
import { getRecommend, getDiscList } from 'api/recommend'
import { ERR_OK } from 'api/config'
import Slider from 'base/slider/slider'
import { playlistMixin } from 'common/js/mixin'
import { mapMutations } from 'vuex'
export default {
  name: 'Recommend',
  mixins: [playlistMixin],
  data () {
    return {
      recommends: [],
      discList: []
    }
  },
  created () {
    this._getRecommend()
    this._getDiscList()
  },
  methods: {
    handlePlaylist (playlist) {
      const bottom = playlist.length > 0 ? '60px' : '' // miniplayer高度60px
      this.$refs.recommend.style.bottom = bottom
      this.$refs.scroll.refresh()
    },
    selectItem (item) {
      this.$router.push({
        path: `/recommend/${item.dissid}`
      })
      this.setDisc(item)
    },
    _getRecommend () {
      getRecommend().then((res) => {
        if (res.code === ERR_OK) {
          this.recommends = res.data.slider
        }
      })
    },
    _getDiscList () {
      getDiscList().then((res) => {
        if (res.code === 0) {
          this.discList = res.data.list
        }
      })
    },
    loadImage () { // 防止滚动高度缺少
      if (!this.checkLoaded) {
        this.$refs.scroll.refresh()
        this.checkLoaded = true
      }
    },
    ...mapMutations({
      setDisc: 'SET_DISC'
    })
  },
  components: {
    Slider,
    Scroll,
    Loading
  }
}
</script>

<style lang='stylus' scoped>
@import '~common/stylus/variable'
.recommend
  position: fixed
  width: 100%
  top: 88px
  bottom: 0
  .recommend-content
    height: 100%
    overflow: hidden
    .slider-wrapper
      position: relative
      width: 100%
      overflow: hidden
    .recommend-list
      .list-title
        height: 65px
        line-height: 65px
        text-align: center
        font-size: $font-size-medium
        color: $color-theme
      .item
        display: flex
        box-sizing: border-box
        align-items: center
        padding: 0 20px 20px 20px
        .icon
          flex: 0 0 60px
          width: 60px
          padding-right: 20px
        .text
          display: flex
          flex-direction: column
          justify-content: center
          flex: 1
          line-height: 20px
          overflow: hidden
          font-size: $font-size-medium
          .name
            margin-bottom: 10px
            color: $color-text
          .desc
            color: $color-text-d
    .loading-container
      position: absolute
      width: 100%
      top: 50%
      transform: translateY(-50%)
</style>
